Unwinding mechanism for braiding-machines.



H. A. PHILIPS & G. PIEPENBRING.

UNWINDING MECHANISM FOR BRAIDING MACHINES.

AYPLICATION TILED APR.1, 1914 1 1,1 17,438. Patented Nov. 17, 191i 3SHEETSSHEET 1.

IT NESSES:

j. [723mg p v A TTORNEY H. A. PHILIP$ & G. PIEPENBRING.

UNWINDING MECHANISM FOR BRAIDING MACHINES.

APPLICATION FILED APR.1. 1914.

3 SHEETS SHBET 2 Patented Nov. 17, 1914.

INVENTORS ar c ZW H. A. PHILIPS & G. PIBPENBRING.

UNWINDING MECHANISM FOR BRAIDING MACHINES.

APPLICATION FILED APR. 1, 1914. I

Patented Nov. 17, 1914.

yae

3 SHEETSSHEBT 3.

31 F W fill 4 :flfi 54 nrfomm HANS ALBERT PHILIPS AND GUSTAV PIEPASSIGNORS T0 MAX HENKELS.

IENBRING. OF BRIDGEPOR-T OF BRIDGEPORT, CONNECTICUT UNWINDING MECHANISMFOR BRAIDING-MACHINES.

Specification of Letters Patent.

Patented Nov. 17

Application filed Aprii 1. 1914. Serial No. 828,788.

To (17/ ir/m/n it may (U/H1774.

Be it known that we, ('1) ll x1; fimii irr liiiurs and (2) (ltzs'ixuPncenxninxo, ti) n citizen of the l'nited States and (Z) a subject ofthe Emperor of (lei-1min both residing at Bridgel'iort. eounty ofFairiield, State oi Connertiruti, have inwnted :in Iniprovement inl'nwinding Mechanism for BrnidingJhu-hmes, of which the following; is asperifiention.

This invention has 'lor its object to pr vide unwinding me hnnism forhrziiding mzu'hines that will permit the use of rer v lllllt'll longerand larger spools or hohhins than has heretofore l)t(ll pwsihle. thu 1etlerting :1 ffl'tttt saving: in the "ost of nuinufut-titre of l'irnidedeoid.

So far as we are :iwiu'e. onl relatively short spools lune heretoforeheen used in hrnidinp 111:1(l1i11ts For the rem; u that the pull uponthe thread mused break ge when drawing from either the upper or lowerend of the spool it the length of the spool wus intrenwd.

()ur re ent ill\'ttill" ll ennhler. us to overcome this diliirulty andto me long spoois with greatly int'reused ritri'i'iug ('2ll)ttlll Thiswe eromplish in proridin g unwinding meehuniem that will rotate thespools met-linnirnlly when the pull upon the threads iuenmsex heyond thenormal. as when drawing from either the upper or lower ends of thelionls.

\i'ith this ohjert in '\'it\\' we hove devised the novel met-hnninnwhit-h we will now de scribe. referring to the :uwom mnying druw iligfsforming a part of this sperlh tion and using: l'tlll'tlltt i-lmrnetersto indimite the uerernl parts.

Figure l is n plnn \iew ol :1 portion of ii hrniding muehine showing: itsull r-ient num her of porl rurriers to illuotrute the priuuiple oi' theinvention: Fig. :3 :in elevation on an enlarged smile of one of the setsof spring fingers: Fig. i1 nu elevation ot' :1 spool carrier showing thed1 whit-l locked to preiont the unwinding in" surplus thread: Fig. ladetai et-tit Elzl iiew on the line 331/ 3 1 in Fig. 2%. looking in thetll" ltrtion ot' the arrows; Fig. l n .-lll)iltl' \iew showing theposition of the parts wlnu thread in lieing drnwn from ither end of thespool: Fig. :1 similar view illustrzitin;

:i tll'lttnt form of lifting niecliani TEN T OFFICE.

, CONNECTICUT,

sin, the

driving Wheel being looked, as in Fig. 3. a spring finger heing hown,but not in its evrrert position relatively to the earrier.

and ti spool. nd thread being indicated hy dotted lines. Fig. inser-tion. the parts being in pos when dinning thread from the vent iionof the pool. ullt)\\ltl;fil19litll'l in position ingr tiirend fromeither end Fin. h :1 detail sertionnl \iew tllltl on imerted l2l!li'ttllFig. l' l 502th on the line ltl ltl the tlilti'lt ln o u detailelrnition of the spindle. driving heel uttut-hed.

6 :1 similar View partly ition 21.5 rnl por Fig. 7 n imihir i'iew :15when (ll'tUV- of the spool;

Fig. 9

phin View of the spool de' :1 Httilflll on an enl urged looltiig in l'the arrows. and Fig.

ll is rleere and 20 den tes the trot f the carrier. 21 :1

Stlllltltl r d extending upward u spool ,spindle likewise word from thetool. rzlrrier i ol tiny or: :ti'mtiou. it i\; 'utlirient for the i ofllllw peeitit-ntii n to shite that tl rnrriers 21H mused to ll';|.'llalong pentiutitfrooi'es :2-3 in the i n nninner eommon to this type ofnuu'hines. For t-ouw-uielu-e we will indirnte the one (lll'tt'titln hing in the opposite direction by l ntin; with rzirriers A arer'ontrolled lingers, :35 mounted upon and i-ot'ipernting with enrriersll oi .spriiug eontrolled lingers 21 extend lt tntzihly mounted :1\leere 2f whu-h cnrriesn lied plate 21 therefrotu and ing up lSelow thefoot tho luuu'y or preferred ron )urpores l0 hIH Ul the serin nniding indeseription t'zll'l'ltls traveling in and the enrrierbtravel--(ooperspring hoses i are sets mounted on the nott'lied it deuote 2!driving wheel whit-h lce'red to the Sltt'ti lint longitutlinnll thereon.The driviu is :idupte to he nioVed g wheel is provided on its fine with:i pllllztlilY of un I13 whi -h may he tizittt-ned upon one Fl lt' asshown.

Z43 denotes the spool or hohhin wh eh is with a pin :15 in HS to lockthe spool unninst rotation independentl of th di lt :iud wheel.

35 denotes a tension weight Whit side of the driving wheel.

freely on the standard. The thread 37 passes from the spool through aneye 38 at at the and-length of the standard, then dmvnward under thetension Weight and upward through an eye 89 at thetop of the standard.

A. vitally important feature of the invention is means for lifting thedriving wheel into position to be engaged by the spring nngers.

40 denotes a lifting block which in the form. illustrated in Figs. 3 and4 is adapted tr move vertically on a guide rod 41'extendiig upward fromthe foot of the carrier. rad extends upward from the lifting and a coilsprin 43 is connected to the upper end of the re the other end of thespring being connected to a slide 44 which adapted to move freely on thestandard. The tension weight is so shaped as to balance on. the standardand prevent the possibility of binding, rod 42 passing through anopening 45 without contact therewith.

46 denotes a lever, one end of which is pivoted to an arm 47 extendingupward from the foot at the end opposite the standard, the other end ofsaid lever being pivoted loosely to a lug 48 extending from the liftingblock. The lever is widened at its niid-lengh and. provided with acentral opening which freely receives the hub 49 of the driving wheeland in the present instance is provided with bosses 50 (one only beingshown) adapted to engage the under The lifting block is provided with adetent 51, the face of which adapted to engage the flattened fares ofthe pins 32 on the driving wheel to lock the driving wheel and with itthe spind e and Sp-Jtl against rotation by momentum in "ase of a suddenpull upon the thread. dctent is preferably beveled down to an. edge onits reverse face to reduce contact surface with the tops of the pins andinsure its quick engagement with a pin.

The lifting mechanism in the form illustrated in Figs. 5, G, 7 and 10differs in that the lever and arm 47 are dispensed with and liftingblock 40 is provided with a branched arm :32 which partly incloses thehub on the driving wheel and engages the under side of said wheel. Thelifting block in this form travels on a guide which is formed integralwith the foot and standard. The

i'lownward movement of the driving wheel limited in both forms by aflange 54 i'orrnrd 'upon the foot, and its upward movement is limited byengagement with Spring fingers 25 and 27 are pivoted to their respectivebases, as at 55. Springs 56 retain the fingers in their normal positionand yield when they are engaged by the pins upon the driving wheel. Pins57 serve as stops to limit the movement of the fingers when returned totheir no: weal position. In

disk 30.

the case of fingers 27, the stop pins have the additional function ofcarrying the springs. In the case of fingers 25, the springs are carriedby pins 58.

The operation is as follows: When thread is being drawnfrom the centralportion of the spool or bobbin,-the pull of the thread will raise thetension weight, which in turn will engage slide 44, and raise liftingblock 40to the position shown inFig. 6, in which it will be noted thatdetent 51 has been raised abovethe top of the pins 32 upon the drivingwheel, so as to leave said wheel unlocked, but said wheel has not beenraised high enough to cause the pins thereon to engage thecorrespnofrfiding spring fingers 25 or 27 as may be. en the parts are inthis position, the pull upon the thread will cause the spool, sleeve anddriving wheel'to rotate freely on thespindle. Any sudden pull upon thethread will be overcome and rendered harmless by the yielding .of spring43. Should the thread slacken, the tension weight will instantly dropaway from slide 44 and will permit said slide, rod 42 and the liftingblock to dro which will permit the detent to rop between the pins 32 onthe driving wheel, as in Figs. 3 and 5, and stop the rotation of thedriving wheel and with it the sleeve and spool, and prevent theunwinding of surplus thread from the spool. Suppose now that thread isbein drawn from the spool either above or be ow the central portionthereof. It follows that the pull upon the thread will be increased. Asthe pull upon the thread increases, the tension weight will be liftedabove the position shown in Fig. 6 and will consequently raise slide 44and the lifting block, the efiect of which is to raise the driving wheelby means of a lever 46 or branched arm 52, as may be, to the positionshown in Figs. 4 and 7, in which position it will be noted that thedriving wheel has been raised high enough to carry its plane of rotationinto the plane of the spring fingers, so that as the carriers travelalong the serpentine grooves, the pins 32 upon the driving wheels of thecarriers specifically indicated by A will be caused to engage springfingers 25 and the pins 32 upon the driving wheels of the carriersspecifically indicated by B will be caused to engage spring fingers 27.The force of the blows of the pins upon the fingers is taken up by theyielding of springs 56, but the effect of the engagement of successivepins with successive fingers is to impart rotation to the driving wheel,sleeve and spool so that thread will be delivered therefrom as fast asrequired, but without any pull upon the thread, so that all danger ofbreakage of the thrcad."evcn when very long and large spools are used,is eliminated. The instant thread is drawn from the central portion ofthe spool again and the pull upon the thread drops down to normal, thetension weight, slide 44, the lifting block and the driving wheel, willdrop down to substantially the position shown in Fig. 6, which willplace the pins upon the driving wheel below the plane of the springfingers, and out of engagement therewith, and the spool, sleeve anddriving wheel will be free to be rotated by the pull. of the threaduntil either an inrrease of pull upon the thread again raises thetension weight, slide, lifting block and driving wheel into position toagain cause the driving wheel, sleeve and spool to be rotated by thefingers, or until slack of the thread permits the tension weight, slideand lifting block to drop down, as in Figs. 3 and 5, and the detent tostop rotation of the driving wheel, sleeve and spool. It should beunderstood that this locking of the driving wheel, would be of verybrief duration in use, as the normal pull upon the thread will quicklyraise the weight, slide and lifting block and relr-ine the drivingwheel, as in Fig. 6, whieh would again leave said wheel, the sleeve andthe spool free to be rotated by the pull of the t read.

Having thus de cribed our invention we claim:

1. A spool carrier comprising a spindle, a standard, a spool-carryingsleeve on the spindle, a driving wheel keyed to the sleeve andlongitudinally movable thereon, means engaging the driving wheel forrotating said sleeve, a slide on the standard, a liftin f blockconnected to the slide and prmided with a detent, means operated by thelifting block for raising the driving wheel and a tension weight raisedand lowered by the pull of the thread and adapted to engage the slide,whereby when the pull upon the thread is normal the driving wheel willbe released, when the pull lessens the wright and lifting block willdrop and when the pull uion the thread inrreases above the normal thedriving wheel will inochanirally rotate the spool.

2. In a braiding machine, the combination with a spool-earrying sleeveand a driving wheel keyed thereto and longitudinally movable thereon, ofa lifting block having a detent adapted to lock the driving wheel, meansfor raising the lifting blork to di engage the detent and the drivingwheel, means operated by the lifting block for raising the driving wheeland means noting to rotate thidriving wheel and sleeve when said wheelis raised into position for on gagement.

ln a Braiding machine, the romhin-n tion with a spool-carrying sleeveand a driving wheel keyed thereto and longitiulinally movable thereon,of means for driving said wheel when in engaging position, a tens-ionweight and means intermediate said weight and the driving wheel forraising said wheel into engaging position when the pull upon the threadis int-reused above the normal.

4. In a braiding maehine, the Combination with a spool-carrying sleeveand a driving wheel keyed thereto and longitudinally movahle thereon. ofmeans for driving said wheel when in engaging position, a lifting hlorl;having means for raising said wheel, a tension weight and connectionsintermedi ate said weight and the lifting hlo"l whereby said blor-l; israised and raises the driving wheel into engaging position when the pullupon the thread is inereased above the normal.

3. in a braiding niaehine. the combina- {inn with a spin l--'-arr vingsleeve and a drivling wheel lie veil thereto and longitudinally niouzblothere n. of means for driving said wheel when in engaging position, alifting blo k having means for raising said wheel, a detent on stiltlblu'lr adapted to look the ill-hing wheel. a tension weight and vonnw-tious intermediate said weight and the lifting block whereby thedriving wheel is released when the pull upon the thread is normal,lorlied when the pull slarrkens and is raised into engaging positionwhen the pull is increased above the normal.

6. In a braiding maehine. the. eombina tion with a spool-Parrying sleeveand a driving wheel keyed thereto and longitmlinall movable thereon, ofmeans for driving said wheel when in engaging position. a lifting blot-kliming means for raising said whorl,

a tension weight, a slide adapted to be (H4 gagged by said weight. forthe purpose ot 'iori'h, and a yielding t'tlllllt' lltlll between theslide and the lilting hlo 'k.

7. In a braiding lllzltlllllt, the (Ulllllllliltion with a.spool-carrying sleeve, 21 drivin g whorl having pins on its into andkeyed to the sleeve and l ngitudinallv inmablo thereon, a tensi n weightand moans inter mediate will eight and the (li'l\lli,1 heel forraisingsaid wl'ieel, of spring controlled fingers inlaptml to be engagedby the pun on the driving whet-l and impart rotation thereto when saidwheel is raised into ongaging position.

8. In a braiding nuullin the combination with a s 'ioolrai'i'yingsleeve, a driving wheel longitudinally movable thereoina tension weightand means internmliato said weight and the driving wheel for raising -ail \YlHkl. finger adapted to be engaged by the driving wh rl herebyrotation is imparted to said wheel when it is raised to the engagingposition.

ll. ln a braiding niarhine, tho ornnbination with a spoolmarryinvsleeve, a driving wheel longitudinally movalile thereon, and means forimparting rotation to said when] when raised into engaging osltion, of alifting dock, means operated thereby for raising the driving wheel, arod extending from said block, a slide, a spring intermediate said rodand slide and a tension weight by which the movements of the slide andlifting block are controlled. 1

10. In a braiding machine, the combination with a spool-carrying sleeve,a drivin wheel longitudinally movable thereon, an means for impartingrotation to said wheel when raised into enga 'ng position, of a liftingblock having a (i tent adapted to lock the driving wheel, means operatedby said block for raising the driving wheel, a slide, a yieldingconnection between said slide and block and a tension weight adaptedtoenage the slide and cause the detent to reease the driving wheel and toraise said wheel into engaging position, substantially as described.'11. In a braiding machine, the combination with a spool carrier havin afoot provided with an arm and a stan ard, a spooloarrying sleeve, adriving wheel longitudinally movable thereon and means for imartingrotation to said wheel when raised lnto engaging osition, of a liftingblock havin a lug, a ever pivoted to said lug and to sai arm and adaptedto raise the driving wheel, a slide on the standard, yielding connectionbetween said slide and the lifting block and a sliding tension weight onthe standard adapted to engage the slide.

12. In a braiding machine, the combination with a spool carrier having afoot provided with an arm and a standard, a spoolcarrying sleeve, adriving wheel longitudinally movable thereon and means for impartingrotation to said Wheel when raised into engaging position, of a liftingblock having a lug, and a detent adapted to lock the driving wheel, alever pivoted to said lug and to said arm and adapted to engage thedriving wheel, a slide on the standard, a yielding connection betweensaid slide and the lifting block and a sliding tension weight on thestandard adapted to engage the slide.

13. In a braiding machine, the combinanally movable thereon and havinggiii tion with a spool-carrying sieeve, driving wheel having pins on itsface and longitw dinally movable on the sleeve and means for impartingrotation to said wheel when raised. into engaging position, of a liftingsmelt. having a detent adapted to lock the driving 'wheel, meansoperated by said block t raising the driving wheel, a slide, yield 3wheel when raised to engaging position, oi 1 a lifting block having alug and a. detent adapted to engage the pins on the driving; wheel, alever pivoted to said lag and is; said arm and adapted to raise thedining? wheel, a slide on the standard, a yieid agj connection betweensaid slide and the lift -ing block and a sliding tension weight on thestandard adapted to engage ti ,de

15. In a braiding machine, the coinimza tion with a spool carrier havinga. foot provided with an arm and a standard, a. S gn L carrying sleeve,a driving wheel longiti its face. and spring controlled finger ed toengage said pins, for the pur nes forth, of a lifting block having a detadapted to engage the pins to iOCrT the di ing wheel, means operated bythe i t block for raising the driving a on the standard with which thei, is connected and a sliding rm the standard adapted to en In testimonywhereof we aiiirt our :2 tnres in presence of two wintesses.

ll. ALBERT PHILIPS, GUSTAV PIlIPFNBiiING, lVitnesses i H. W. MnAnn, I.M. CULVER.

